lay at rest

lay (something) at rest

To resolve, satisfy, or conclude something; to pacify or calm something. We've been arguing over this will for nearly a year now. Can't we just lay this all at rest? I hope this explanation will help finally lay these questions at rest. News of the bailout has laid the turbulent markets at rest, at least for the time being.
See also: lay, rest

lay at rest

Also, lay to rest; set at rest. Satisfy, settle, as in I'll take care of it; you can set your mind at rest, or The arbitrator is sure to lay these questions to rest. [Late 1300s] Also see at rest; lay to rest.
See also: lay, rest
References in classic literature ?
I did not despair of still finding that evidence, and I had lost none of my anxiety to discover it, for I had lost none of my interest in tracing the father of the poor creature who now lay at rest in Mrs.
Hard by, was a little churchyard; not crowded with tall unsightly gravestones, but full of humble mounds, covered with fresh turf and moss: beneath which, the old people of the village lay at rest.